diff --git a/src/emucore/DefProps.hxx b/src/emucore/DefProps.hxx
index b182f2f12..5a32b1b05 100644
--- a/src/emucore/DefProps.hxx
+++ b/src/emucore/DefProps.hxx
@@ -274,7 +274,6 @@ static constexpr BSPF::array2D<const char*, DEF_PROPS_SIZE, 21> DefProps = {{
   { "113cd09c9771ac278544b7e90efe7df2", "Atari, Ed Logg, Carol Shaw - Sears", "CX2639 - 49-75162", "Othello (1981) (Atari) [no grid markers]", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "114c599454d32f74c728a6e1f71012ba", "Activision, Bob Whitehead - Ariola", "EAX-015, EAX-015-04I - 711 015-725", "Chopper Command (1982) (Activision) (PAL)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "11bcf5c752088b5aaf86d6c7a6a11e8d", "Atari, Jerome Domurat, Andrew Fuchs, Dave Staugas, Robert Vieira", "CX26118", "Millipede (1984) (Atari) (Prototype)", "", "Prototype", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
-  { "11e0aedc8681ad7583b5659a0aba04b7", "Atari, Omegamatrix", "", "Super Breakout Menu (2020) (PAL) (Hack)", "Hack of Super Breakout", "", "", "", "", "", "", "", "", "", "", "", "AUTO 55", "", "", "", "" },
   { "11e7e0d9437ec98fa085284cf16d0eb4", "", "", "Bowling (208 in 1) (Unknown) (PAL)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "11f9532557e4c9569f4b242164006161", "Chris Walton, Justin Hairgrove, Tony Morse", "", "Hunchy II (2005) (PAL)", "Homebrew", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "1201c18cf00d2c236f42e4d7d8c86aa1", "", "", "Nick Bensema Demo (Nick Bensema)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
@@ -385,6 +384,7 @@ static constexpr BSPF::array2D<const char*, DEF_PROPS_SIZE, 21> DefProps = {{
   { "191ac4eec767358ee3ec3756c120423a", "", "", "Checkers (208 in 1) (Unknown) (PAL)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "192aa2e8c795c9e10a7913e5d41feb81", "Atari - GCC, Jaques Hugon, Seth Lipkin", "CX26125", "Los Angeles 1984 Games (1984) (Atari) (Prototype) (PAL)", "AKA Track and Field (Uses Track & Field Controller)", "Prototype", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "193f060553ba0a2a2676f91d9ec0c555", "Atari, Carol Shaw", "CX2636, CX2636P", "Video Checkers (1980) (Atari) (PAL)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
+  { "1942bdb7abc75e412068330a9082b0ff", "Atari, Omegamatrix", "", "Super Breakout Menu (2020) (PAL) (Hack)", "Hack of Super Breakout", "", "", "", "", "", "", "", "", "", "", "", "AUTO 55", "", "", "", "" },
   { "1986f864e32e3e8d198b5becf3022257", "Thomas Jentzsch", "", "Reactor - Atari Trak-Ball Hack v1.3 (PAL) (Half-Speed) (TJ)", "Uses Atari Trak-Ball Controller", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "199985cae1c0123ab1aef921daace8be", "", "", "Euchre (Release Candidate 2) (PAL) (01-10-2002) (Erik Eid)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "199eb0b8dce1408f3f7d46411b715ca9", "Parker Brothers, David Lamkins, Laura Nikolich", "PB5900", "Spider-Man (1982) (Parker Bros)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
@@ -2922,7 +2922,7 @@ static constexpr BSPF::array2D<const char*, DEF_PROPS_SIZE, 21> DefProps = {{
   { "d62d7d1a974c31c5803f96a8c1552510", "", "", "StarMaster (Unknown) (PAL)", "Use Color/BW switch to change between galactic chart and front views", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "d632b74fea533d593af82cf16e7c5e4a", "", "", "Fu Kung! (V0.13) (01-02-2003) (AD)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "" },
   { "d65028524761ef52fbbdebab46f79d0f", "CCE", "", "Galaxian (CCE)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
-  { "d65900fefa7dc18ac3ad99c213e2fa4e", "", "", "Grid and Purple Dot Demo (PD)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
+  { "d65900fefa7dc18ac3ad99c213e2fa4e", "", "", "Guntest (2000) (Eckhard Stolberg)", "Light Gun Test (based on Sentinel code)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "d69559f9c9dc6ef528d841bf9d91b275", "Activision, Alan Miller", "AX-016", "StarMaster (1982) (Activision)", "Use Color/BW switch to change between galactic chart and front views", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "d6a44277c3eb4f9d039185e0ecf7bfa6", "", "", "Trick (1997) (Eckhard Stolberg)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "d6acff6aed0f04690fe4024d58ff4ce3", "Spectravision - Spectravideo - Quelle", "SA-202 - 412.851 8", "Planet Patrol (1982) (Spectravision) (PAL) [different spaceship]", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
diff --git a/src/emucore/stella.pro b/src/emucore/stella.pro
index 3d24d16b9..55caac5bf 100644
--- a/src/emucore/stella.pro
+++ b/src/emucore/stella.pro
@@ -21307,7 +21307,7 @@
 "Display.Phosphor" "YES"
 ""
 
-"Cart.MD5" "11e0aedc8681ad7583b5659a0aba04b7"
+"Cart.MD5" "1942bdb7abc75e412068330a9082b0ff"
 "Cart.Manufacturer" "Atari, Omegamatrix"
 "Cart.Name" "Super Breakout Menu (2020) (PAL) (Hack)"
 "Cart.Note" "Hack of Super Breakout"